/*
*Copyright 2021-2023 NERCIS
*
*Licensed under the Apache License, Version 2.0 (the "License");
*you may not use this file except in compliance with the License.
*You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
*Unless required by applicable law or agreed to in writing, software
*distributed under the License is distributed on an "AS IS" BASIS,
*WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*See the License for the specific language governing permissions and
*limitations under the License.
*/

package cn.ac.nercis.pes.service.manage;

import cn.ac.nercis.pes.model.dto.common.Result;
import cn.ac.nercis.pes.model.dto.common.ResultCode;
import cn.ac.nercis.pes.model.dto.manage.EvaluationUnitDTO;
import cn.ac.nercis.pes.repository.dal.manage.EvaluationUnitRepository;
import cn.ac.nercis.pes.repository.mapper.manage.EvaluationUnitMapper;
import cn.ac.nercis.pes.repository.model.manage.EvaluationUnitDO;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.Objects;
import java.util.Optional;

/**
 * 测评单位管理服务
 * @author zpy
 * @version 1.0.0
 */
@Slf4j
@Service
public class EvaluationUnitService {
    private final EvaluationUnitRepository evaluationUnitRepository;

    @Autowired
    public EvaluationUnitService(EvaluationUnitRepository evaluationUnitRepository) {
        this.evaluationUnitRepository = evaluationUnitRepository;
    }

    public EvaluationUnitDTO findEvaluationUnit(){
        return this.evaluationUnitRepository.findAll().stream()
                .findFirst()
                .map(EvaluationUnitMapper.INSTANCE::toDTO)
                .orElse(EvaluationUnitDTO.builder().build());
    }

    public Result<String> save(EvaluationUnitDTO unitDTO){
        EvaluationUnitDO source = this.evaluationUnitRepository.findById(unitDTO.getId())
                .orElse(null);
        if(Objects.isNull(source)){
            return Result.failed(ResultCode.EVALUATION_UNIT_NOT_EXIST);
        }
        try{
            return Optional.of(EvaluationUnitMapper.INSTANCE.toDO(source,unitDTO))
                    .map(evaluationUnitDO -> {
                        evaluationUnitDO.setModifyTime(LocalDateTime.now());
                        return evaluationUnitDO;
                    })
                    .map(evaluationUnitRepository::save)
                    .map(EvaluationUnitDO::getId)
                    .map(Result::success)
                    .orElse(Result.failed());
        }catch (Exception ex){
            log.error("修改测评单位出错：",ex);
            return Result.failed(ResultCode.FAIL);
        }
    }
}